feat(blog): add file-based blog with dynamic slugs, MDX content and layout shell

- Introduced blog routing using Next.js App Router
- Implemented dynamic [slug] pages for blog posts
- Added MDX-based content loading via lib/posts
- Integrated shared TopBar layout with navigation
- Established clear content, lib and component separation

apps/public-web/node_modules/next/dist/build/get-babel-loader-config.d.ts

@@ -0,0 +1,16 @@
+import type { ReactCompilerOptions } from '../server/config-shared';
+declare const getBabelLoader: (useSWCLoader: boolean | undefined, babelConfigFile: string | undefined, isServer: boolean, distDir: string, pagesDir: string | undefined, cwd: string, srcDir: string, dev: boolean, isClient: boolean, reactCompilerOptions: boolean | ReactCompilerOptions | undefined, reactCompilerExclude: ((excludePath: string) => boolean) | undefined) => {
+    loader: string;
+    options: import("./babel/loader/types").NextBabelLoaderOptionDefaultPresets;
+} | undefined;
+/**
+ * Get a separate babel loader for the react compiler, only used if Babel is not
+ * configured through e.g. .babelrc. If user have babel config, this should be configured in the babel loader itself.
+ * Note from react compiler:
+ * > For best results, compiler must run as the first plugin in your Babel pipeline so it receives input as close to the original source as possible.
+ */
+declare const getReactCompilerLoader: (reactCompilerOptions: boolean | ReactCompilerOptions | undefined, cwd: string, isServer: boolean, reactCompilerExclude: ((excludePath: string) => boolean) | undefined, isDev: boolean) => {
+    loader: string;
+    options: import("./babel/loader/types").NextBabelLoaderOptionStandalone;
+} | undefined;
+export { getBabelLoader, getReactCompilerLoader };